Porsche 911 2008 - Electrical systems

COW4

MEMBER

1 POST

2008 PORSCHE 911

V10

2WD

MANUAL

6,700 MILES

I'm getting the following message on my Nav screen: "System error: Sattelite radio, nav systems and amplifier are not available". In short, I have no sound system and the nav isn't working, although the onboard computer is functioning. Is there a way I can reboot this or is this most likely a fuse issue? Thanks